Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 32 for “"pendant groups"”.
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UV curable powder coatings for the finishing of leather
… (ii) introducing functional monomer with pendant groups and (iii) cross-linking during curing. Amongst the three approaches explored in this work, a combination of branching and cross-linking was found most successful. A crystalline binder with cross-linkable pendant groups was employed as …
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Structure-Property Relationships of Polyester Regioisomers and Pendant Functionalized Polyetherimides
… synthesis of novel polyester regioisomers and pendant functionalized polyetherimides (PEI)s. Novel monomers incorporated at targeted mol % produced series of polyesters and PEIs, suitable for systematic analysis of key polymer properties. Subsequent compositional, thermal, mechanical, and …
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Novel molecular architectures from iptycene polymers
… internal molecular free volume. When these bulky pendant groups are incorporated into the backbone of a polymer chain, they produce a novel chain architecture called molecular barbed wire. This molecular barbed wire architecture not only influences individual polymer chain dynamics but also …
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Organic macromolecular architectures for non-aqueous redox flow batteries
… example of such a material utilized viologen pendant groups as the redox mediator and acted as the anode material. This approach provided a system with reversible cycling efficiency (94-99%) and selective prevention of crossover (97%). In the attempt to form a full cell, a ferrocene-based …
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Probing Convergence in Orthogonal Conjugated Catalysis by T4 Lysozyme Utilizing Biophysical Characterization
… to produce a conjugated polymer with pyridine pendant groups. Initial studies utilized hen egg-white lysozyme (HEWL), however, the deduction of its mechanism was limited since tools for modifying the protein for detailed studies of structure activity relationships were intractable. In this …
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Synthesis towards Polyhedral and Rigid Organic Non-Linear Optic Materials
… results, varying with amount of extension of the pendant groups. Initial synthesis of these materials have shown great promise and shall be discussed in Chapter 4.</p>
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Analyzing the interactions of thermoresponsive coacervate-forming biodegradable polyester encapsulation on model protein structure and activity
… with <sup>15</sup>N-ubiquitin and that various pendant groups within a given polymer resulted in non-significant differences. Although TR-PEs may not be specifically interacting with the model cargos, demonstrating that TR-PEs capture and release an unaltered, complex protein exemplifies the …
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Developing Nucleic Acid-Based Sensors and Actuators
… hydrogels containing DNA as an anchor for pendant groups or as a structural element. This versatile approach improves on the sensitivity of current DNA-responsive materials while enabling their rapid repurposing toward new sequence targets. In the second half of this thesis, I describe how …
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Synthesis of novel cylic monomers for hydrogel polymers
… that both compounds contained eclipsed hydroxy groups and flat rings. A number of catechol derivatives were prepared in good yield, under non-acidic conditions at room temperature. The limited availabilty of cis-DHCD led to an investigation into synthesising hydrophilic derivatives of both cis …
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Soluble redox active macromolecular architectures and their electrochemical analysis for energy storage applications
… by the incorporation of organic redox motifs as pendants. Traditionally, redox active polymers (RAPs) have been electrochemically studied as films or composites, with few examples of solution-based studies until recently. In this dissertation, I explore the design and electrochemical …
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Polymers for Next Generation Lithography
… offset by functionalizing with more stable pendant groups. We have selected substituted N-methacryloyloxy phthalimide, containing cycloimido group as a pendant, which is strong enough to give sufficient thermal stability, at the same time expected to be sensitive to electron beam exposure …
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The synthesis of new electro-optic polymers.
… phenyl esters of benzoic acid as mesogenic (pendant) groups. Specifically, the mesogenic group contained an oxy-aryl-carboxy-aryl-carboxy-alkyl structure separated from the acrylate carbon-carbon double bond by a spacer group, which had a carboxyethyl-carboxyhexyl structure. A synthetic route …
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Silicon-based organic and inorganic polymers
… monomer containing amine functionalities as pendant groups on silicon atoms. The effect of the bulky substituent {-CH₂CH(CH₃)CH₂NHCH₂CH₂NH₂} of the silicon atom on the position of thermodynamic equilibrium, and the extent of molecular weight and composition control in the linear polysiloxane …
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Cationic amphiphilic synthetic macromolecules with superior antibacterial activity
… homopolymers with various lengths of alkyl pendant groups displayed high antibacterial activity against Staphylococcus aureus (S. aureus) and very low hemolytic activity toward red blood cells (RBCs). In comparison with polyacrylate homopolymers, random copolymers were highly antibacterial …
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Design and Synthesis of Polymer Networks and Branched Polymers for Triggered Deconstruction of Self-Assembly
… that small structural variations to aliphatic pendant groups along copolymer backbones of free-standing self-assembling graft copolymers underpin enormous changes in material morphology and thermomechanical properties. Notably, we also introduce highly ordered body-centered-cubic morphologies …
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Tribopolymerization: Anti-Wear Behavior of New High Temperature Additive Classes
… included aromatic compounds with various pendant groups adding the design functionality necessary for in-situ polymerization. The amino, hydroxyl, acid, and ester functional groups underwent studies across several aromatic molecular compositions while new heterocyclic additives, in …
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DERIVATIZATION OF DIIMINE TRICARBONYL Re(I) COMPLEXES FOR COOPERATIVE CATALYSIS AND SURFACE IMMOBILIZATION
… CO2 reduction. Re(I) catalysts with hydroxyethyl pendant groups were also synthesized to investigate catalyst interactions with electrode surfaces. These materials provided insights regarding the effects of integrating Re(I) catalysts into both conjugated and non-conjugated polymeric systems.</p> …
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Octopus and dendrimer molecules with silsesquioxane cores
… Octopus molecules, or materials with pendent groups from a core, and dendrimer molecules, or materials with a defined pattern of branching from a core are means of obtaining molecules of designed architecture. The work presented here involves the synthesis and characterization of octopus and …
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The good without the bad: Selective chelators for beryllium encapsulation
… on a di-pyridyl scaffold with selected chelating pendant groups, allowing the formation of tetradentate complexes which can form the desired six-membered chelate rings with Be2+ cations. Chapter Two explored the synthesis of a ligand based a dipyrrin pendant group. The corresponding dipyrromethane …
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